Loyalty and Retention Offers

Just spent an hour being passed from CSR to CSR trying to change my internet to the 1 GB 5 year rate lock price of $50 a month.  Was told that is only for new customers and rep did not seem to care that I can get 1GB internet from Frontier or GoNetSpeed, for $50 a month, in my area both of which are fiber and have better upload speed.  So I get charged $110 a month while Comcast offers the save service for $50 a month to new customers.  Seems like they must want loyal 20+ year customers to cancel their service and switch providers.  Anyone else have a similar situation and obtain a reasonable solution from Customer Service?